Question

Q2-9800J of energy was spend to raise a mass of 50kg.The mass was raised to a height of: g=9.8m/s2 
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Answer 1

Answer:

the height is 20m.

Explanation:

This energy is potential energy.

the formula is P.E = mgh [m = mass, g = acceleration due to gravity, h = height]

here, mgh = 9800

50 × 9.8 × h = 9800

490 × h = 9800

h = 9800/490 = 20

So, the height is 20m

I hope it may help you.